Question

Graph it for me? I solved the problem but am really confused as to how to graph it! Please help!
This is what the plots will be:
http://i45.tinypic.com/dy6u5x.png
This is what I have to graph it on!
http://i45.tinypic.com/sy09it.jpg

Answer 1

hello

Answer 2

?

Answer 3

gimme a second to edit the pic

Answer 4

alright thanks a lot!

Answer 5

3D graphing? what class is having you do that?

Answer 6

algebra

Answer 7

wait..
actually...

Answer 8

geometry. idk why i said algebra

Answer 9

there are many kinds of algebra classes haha. geometry? really!? wow. while stormfire is making a pic, would you like me to explain how the 3D system works?

Answer 10

i solved for the graphing plot points but it's confusing when it comes to graphing i dont get it at all.

Answer 11

yeah sure

Answer 12

Yea...it's hard to do with a paint program. There's a tornado warning here so I'll be back on in a bit

Answer 13

alright. i just usually use ms paint and draw dots. lol

Answer 14

then i make a line using the symbol/line tool lol

Answer 15

by the way i was wondering, since i'm new to this site. are you able to choose more than one "best answer"?
o-o;

Answer 16

There is the point (1,3,-2)
along with faint lines to help see where it is located.

Answer 17

just wondering. why is it that there is only one red dot? hmm.

Answer 18

I only plotted 1 point.

Answer 19

You can do the rest on your own.

Answer 20

why is it that it changed though

Answer 21

What changed?

Answer 22

ok well graphing is simple, im sure you udnerstand it in lower dimensions but ill cover em anyways...
in 1D you have a numberline, left usually means negative and right means positive. number lines are usualyl used to show when a single variable is related to a given value (like x is larger than 5 or the time is always greater than 1 second)

in 2D you are comparing two things, usually x and y. you do this by graphing em on a cartesian plot (though others do exist) (cartesian also called rectangular). often y will represent height and x will represent time (so you can graph the height in terms of time). the equations for you will be linear like y=x+1. or you maybe given a data set where you have something compared with something (car crashes per year where crashes are your y and years are your x). say in year 1 there was 5 crashes. you look at your x line of 1 and then go up 5 till you are on the y line of 5. this is basically going to the right one and then going up 5.

with 3D you are either comparing three things or one thing that is dependent on two others (time vs height vs length or height vs amount of fertilizer vs amount of water)
you do the same to graph, say you measured a plant grew 5 cm when 1ml of water and 4 L of soil were given, if water is x, soil is y, and height is z then you go up the x by 1 (which is towards you) then up the y by 4 (to the right) and then up z by 5 (goes straight up).

this long message may or may not help, but i hope it does

Answer 23

coordinates (as you should know) work like this: (x,y,z)... so a point (1,2,3) will come one towards you, 2 to the right, and 3 up. or (-1,-2,-3) will go 1 away from you, 2 to the left, and 3 down. (-1,2,-3) will go 1 away from you, 2 to the right, and 3 down... etc

Answer 24

it's just confusing cause it has 3 axis

Answer 25

they work exactly the same, so just keep your eyes straight and count your dashes right. imagine the normal 2D graph, but you can come straight up from the paper too!

Answer 26

oh, and pay attention to the axis labels. the CORRECT labels will hav x come towards you or slightly to the left and y will go to the right while z goes up. this is know as the "right hand orientation"... but some fools use their left hand! and some of my professors looked like they used their foot -.-

Answer 27

i have a question though. will i end up with like 3 boxes or do i just use the box to get the coordinate?

Answer 28

just use the box for coordinates. you dont even need to use it at all, its just for ease. you will find that as you practice, you will stop needing the boxes completely. and soon you will be able to graph in your head!

Answer 29

ohhh okay

Answer 30

hmm hold up
lemme try and graph it and you tell me if its correct

Answer 31

okk but im only here for a little longer. then i gotta go eat

Answer 32

okay
welll.

Answer 33

are you here?

Answer 34

my bad, i had to go eat haha